Event & Delegate Conversation

Question

What is events? What is the purpose of events? What is delegates? What is the purpose of delegates? What's the difference between events and delegates? When to use events and when to use delegates?

Maha · Answer

This YouTube gives good understanding Advanced C#: 06 Delegates https://www.youtube.com/watch?v=9K9Aq7die7Q Advanced C#: 08 Events https://www.youtube.com/watch?v=KVp_E-hTG0k

Raja T · Answer

What is a Delegate? Delegate is a type which holds the method(s) reference in an object. It is also referred to as a type safe function pointer. Advantages:- Encapsulating the method's call from caller Effective use of delegate improves the performance of application Used to call a method asynchronously

Raja T · Answer

What is Event in C#? An event in C# is a way for a class to provide notifications to clients of that class when some interesting thing happens to an object. The most familiar use for events is in graphical user interfaces; typically the classes that represent controls in the interface have events that are notified when the user does something to the control (for example click a button) n event is a hook on an object where the object can say Hey something interesting is about to happen (or just happened) and code on the outside of the object can say (before that something happens) that I'm interested in that message. Take buttons for instance this code: btOK.Click += new EventHandler(btOK_Click); This says to the button: Hey when you want to fire the Click event (which is fired when the user clicks on the button) let me know by calling my method btOK_Click.

David Smith · Answer

Can someone just explain on this thread instead. I have seen many examples and I am still not able to explain. I want to start the conversation here.

Raja T · Answer

http://www.codeproject.com/Articles/12043/Using-Events-and-Delegates-in-C

Raja T · Answer

http://www.codeproject.com/Questions/391438/difference-between-Event-and-Delegates

Raja T · Answer

Hi checkout http://stackoverflow.com/questions/29155/what-are-the-differences-between-delegates-and-events

Munesh Sharma · Answer

http://www.arungudelli.com/csharp/delegates-and-events-in-csharp/